Equivalent & Substitute Parts for 45JR30

Part Overview

The 45JR30 is a 300 mOhms ±5% 5W axial wirewound through-hole resistor manufactured by Ohmite as part of the Ohmicone® 40 series. This component is currently in active production status with 750 pieces available in new original inventory. The 45JR30 is classified as RoHS non-compliant, making identification of compliant alternatives necessary for applications subject to RoHS3 regulations or equivalent environmental standards.

Substiute Parts

45JR30

OhmiteIn Stock: 77245JR30 Datasheet

Current PartRFQ

45JR30E

OhmiteIn Stock: 77045JR30E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The 45JR30E qualifies as a parametric equivalent based on the following criteria:

Electrical parameters are identical: 300 mOhms resistance, ±5% tolerance, 5W power rating, ±90ppm/°C temperature coefficient, and wirewound composition. Mechanical parameters are identical: axial package type, 0.343" Dia x 0.937" L dimensions, and 2 terminations. Both parts belong to the Ohmicone® 40 series and maintain active product status. The primary distinction is packaging format (tape/reel versus bulk) and RoHS compliance status. The 45JR30E achieves RoHS3 compliance, whereas the 45JR30 does not.

Parameter Comparison

Engineering Selection Recommendations

Selection between 45JR30 and 45JR30E depends on regulatory and compliance requirements. The 45JR30E is the appropriate choice for applications requiring RoHS3 compliance or equivalent environmental standards. Both parts are active products with equivalent electrical and mechanical specifications, ensuring direct functional interchangeability. The 45JR30E is supplied in bulk packaging, while inventory levels are comparable between both variants. For new designs or applications subject to RoHS regulations, the 45JR30E is the preferred selection.

Frequently Asked Questions (FAQ)

Q: Are 45JR30 and 45JR30E electrically identical?

A: Yes. Both parts have identical resistance (300 mOhms), tolerance (±5%), power rating (5W), temperature coefficient (±90ppm/°C), and composition (wirewound).

Q: Are the physical dimensions the same?

A: Yes. Both parts share identical axial package dimensions of 0.343" Dia x 0.937" L (8.70mm x 23.80mm) and are mechanically interchangeable.

Q: What is the primary difference between these parts?

A: The 45JR30E is RoHS3 compliant, while the 45JR30 is RoHS non-compliant. Packaging format also differs: 45JR30E is supplied in bulk.

Q: Can I use 45JR30E as a direct replacement for 45JR30?

A: Yes, provided your application does not require the specific packaging format of the original part. Electrical and mechanical specifications are identical.

Q: Which part should I specify for new designs?

A: Specify 45JR30E for new designs, particularly if RoHS3 compliance is required or anticipated.